... 4,sufficienct and endurable to use Metal medium stroage rack Material: Cold-rolled SteelStyle: Medium-duty Four LayersBearing ... films.Details: 1. The storage shelf, easy to install and dismantle, with high capacity storage, is space saving and endurable ... produce witin 20days.3.Our garanteed quality . The company strictly observes ISO9001 International Quality Management System,and excellent safty ...